한국수소및신에너지학회논문집 (Transactions of the Korean hydrogen and new energy society)

  • 제17권1호
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  • Pages.98-108
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  • 2006
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  • 1738-7264(pISSN)
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  • 2288-7407(eISSN)
한국수소및신에너지학회 (The Korean Hydrogen and New Energy Society)
권호 표지

이단계 바이오 수소/메탄 생산공정의 경제성 평가

Economic Evaluation of Two-step Biohydrogen/biomethane Production Process

  • 오유관 (한국에너지기술연구원 바이오에너지연구센터) ;
  • 김유진 (부산대학교 화학생명공학과 및 환경기술산업개발연구소) ;
  • 김미선 (한국에너지기술연구원 바이오에너지연구센터) ;
  • 박성훈 (부산대학교 화학생명공학과 및 환경기술산업개발연구소)
  • Oh, You-Kwan (Bioenergy Research Center, Korea Institute of Energy Research) ;
  • Kim, Yu-Jin (Department of Chemical and Biochemical Engineering and Institute for Environmental Technology and Industry, Pusan National University) ;
  • Kim, Mi-Sun (Bioenergy Research Center, Korea Institute of Energy Research) ;
  • Park, Sung-Hoon (Department of Chemical and Biochemical Engineering and Institute for Environmental Technology and Industry, Pusan National University)
  • 발행 : 2006.03.15
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⟨ 이전 논문 다음 논문 ⟩

초록

본 연구에서는 이 단계 연속 바이오 수소/메탄 생산공정의 경제성을 조사하였다. 경제적 관점에서 다양한 수소 및 메탄 발효용 생물반응기를 비교 평가하였다. 이를 바탕으로 포도당으로부터 일 단계 수소발효를 위해 고온 trickling biofilter 반응기 (TBR, $100\;m^3$ 규모)를, 일 단계 반응의 부산물로 생성된 유기산과 알콜류의 이 단계 메탄전환을 위해 고온 upflow anaerobic sludge 반응기 (UASB; $700\;m^3$ 규모)를 선정하였다. 본 이 단계 공정의 수소생산 비용은 $$\;0.26/Nm^3$으로 계산되었고, 이는 고온 TBR 반응기만을 이용한 경우보다 약 30 % 낮았다. 이 단계 공정의 낮은 수소생산 비용은 높은 에너지 회수율과 낮은 슬러지 처리비용에 의한 것이었다. 생물학적 수소 생산공정의 경제성은 탄소원의 종류, 생물반응기의 형태 등 여러 인자에 의해 변경될 수 있으나, 본 연구결과는 향후 연구를 위한 유용한 기준으로 고려될 수 있다.

키워드

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